CVE-2026-27942

medium Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: February 26, 2026
Last Modified: February 26, 2026
Vendor: Red Hat

Description

fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with `preserveOrder:true`. Version 5.3.8 fixes the issue. As a workaround, use XML builder with `preserveOrder:false` or check the input data before passing to builder.

CWE

CWE-776

Affected Products

Migration Toolkit for Applications 8Red Hat Advanced Cluster Security 4Red Hat Developer HubRed Hat Openshift Data Foundation 4Red Hat OpenShift GitOpsRed Hat OpenShift Virtualization 4Red Hat Satellite 6Self-service automation portal 2

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com